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    <ul>
        <li class="li1">我是第1个</li>
        <li class="li2">我是第2个</li>
        <li class="li3">我是第3个</li>
        <li class="li4">我是第4个</li>
        <li>我是第5个</li>
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    <div class="box1">
        cfvgbhnjmk,
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    <div class="box2">
        cfvgbhnjmk,
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